Tee hee,looks like the gloves are off on this one,I have travelled on all the above mentioned routes.I think the Laggan option is pushing it a bit when you would have to travel (south) through fort bill to Glencoe!!!.
Having said that the laggan/A9 route is probably the easiest drive (in a van) with a better average speed,if time is not an issue.
The Loch Lomand route has always been a nightmare when ever I have used it,but I havent tried it at 7 in the evening on a friday. 🙄
Thanks for the “unmarked police bike” advice TJ,Our regular mbike trip usually means we travel up the A84 at some pretty silly speeds,so far we havent had any issues, although its usually on a friday evening when things are quiet.
maybee we have been very lucky so far! 😉